Function Health vs Superpower
Superpower is cheaper to start ($199 vs $365 per year, lowest published plans). Function Health scores higher overall (9.0 vs 8.8).
By Julian Caraulani · prices checked
Quick verdict
Our pick between the two: Function Health
Function Health scores 9.0/10 against 8.8 for Superpower, ahead on access and reputation. Superpower can still be the better fit: it is best for people who want a broad yearly panel at the lowest membership price.
Side by side
| Function Health | Superpower | |
|---|---|---|
| Lowest price | $365/yr (yearly membership, auto-renews) | $199/yr (yearly membership, auto-renews) |
| Our score | 9.0/10 | 8.8/10 |
| Treatments | Longevity memberships | Longevity memberships |
| Medication in price | Not stated | Not stated |
| Drugs dispensed | Not stated | Not stated |
| Labs | Not stated | Not stated |
| Membership | Not stated | Not stated |
| Insurance | No; self-pay | No; self-pay |
| States | 48 states (not RI, HI), per its own site (2026-10-31) | 41 states (not AK, AR, HI, LA, MS, ND, RI, SD, WY), per its own site (2026-10-31) |
| Cancellation | Cancel and rejoin anytime; no pauses; no refunds for prior payments; auto-renews annually at then-current price. | Cancel anytime, no fee; membership stays active through the paid year; auto-renews. Membership Agreement (effective 9.15.2026) adds a one-time Satisfaction Refund of the base fee if requested by the earlier of 7 days after first results or 45 days after start. FAQ still says no refunds (conflict). Binding arbitration with 30-day opt-out. |
| FDA warning letters | None found (October 31, 2026) | None found (October 31, 2026) |
| Trustpilot | 4.5/5 (3,102 reviews) | 4.4/5 (340 reviews) |
| Best for | People who want the widest yearly panel, retested twice, in one membership. | People who want a broad yearly panel at the lowest membership price. |
| Prices checked | 2026-10-31 | 2026-10-31 |
Price by treatment
The lowest all-in plan each publishes for the treatments both offer, with the page we read it on.
| Treatment | Function Health | Superpower |
|---|---|---|
| Longevity memberships | $365/yr (yearly membership, auto-renews) source, 2026-10-31 | $199/yr (yearly membership, auto-renews) source, 2026-10-31 |
Function Health: a closer look
Yearly membership: 100+ markers at Quest, a mid-year retest and a clinician summary. We searched the FDA warning-letter database on October 31, 2026 and found no letter naming Function Health.
In its favour
- Measures ApoB, Lp(a), fasting insulin, omega-3 and heavy metals in the base price
- Two draws a year included
- Clinicians review every result
To weigh
- No refunds for prior payments, and membership auto-renews at the then-current price.
- '160+ lab tests' counts the mid-year retest; the annual draw is 100+.
- NY/NJ residents can be billed lab fees on top of the membership, amount not disclosed upfront.
- Not available in Rhode Island, Hawaii or Puerto Rico.
Superpower: a closer look
Yearly membership: one Baseline panel at Quest, clinician review, AI chat. We searched the FDA warning-letter database on October 31, 2026 and found no letter naming Superpower.
In its favour
- Lowest yearly membership price we track outside NY and NJ
- Clinicians from an independent medical group review results
- Satisfaction refund in its membership agreement
To weigh
- '100+ biomarkers' includes calculated ratios; Function's lawsuit alleges about 55 direct measurements (allegation).
- NY/NJ members pay double ($399).
- At-home draws cost extra and the fee is only shown at booking.
- Not available in 9 states.
Which should you choose?
Choose Function Health
Best for people who want the widest yearly panel, retested twice, in one membership. Its lowest all-in plan is $365/yr (yearly membership, auto-renews).
Check Function Health's priceChoose Superpower
Best for people who want a broad yearly panel at the lowest membership price. Its lowest all-in plan is $199/yr (yearly membership, auto-renews).
Check Superpower's priceFunction Health vs Superpower: questions people ask
Is Function Health or Superpower cheaper?
Superpower starts lower at $199 per year versus $365 at Function Health, comparing each program's lowest all-in plan.
Which is better, Function Health or Superpower?
On our published score Function Health rates 9.0 and Superpower rates 8.8. Function Health is best for people who want the widest yearly panel, retested twice, in one membership; Superpower is best for people who want a broad yearly panel at the lowest membership price.
Do Function Health and Superpower offer the same treatments?
Function Health: Longevity memberships. Superpower: Longevity memberships.
Does either include the medication in the price?
Function Health: not stated. Superpower: not stated.
Blood Test Watchdog compares testing services. It is not medical advice, does not interpret results and does not publish reference ranges as advice. Talk to a licensed clinician about which tests you need and what your results mean. Partner links may earn us a commission; our score never depends on it. Compare other programs.